Date: 20 Apr 2000 15:41:10 -0400 From: Arcady Genkin <a.genkin@utoronto.ca> To: freebsd-questions@FreeBSD.ORG Subject: Re: Selectively enable/disable DMA for an ata driver Message-ID: <87itxcd0h5.fsf@tea.thpoon.com> In-Reply-To: Kent Stewart's message of "Thu, 20 Apr 2000 12:05:21 -0700" References: <87og74d9j6.fsf@tea.thpoon.com> <38FF54F1.F6CC270C@3-cities.com>
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Kent Stewart <kstewart@3-cities.com> writes: > Do a "man ata" and in the middle is a section on the sysctl options > that you can use to set ad0 to PCI. You now have a /etc/sysctl.conf > for saving options such as this one. Kent, thanks a lot! This did it. This makes me wonder, though... Since sysctl.conf is only read when system goes multiuser, suppose somebody had a device that would hang the system if accessed in DMA mode. sysctl solution would now work in that case. I still think that it would be nicer to have an option in kernel config, so that the drive is accessed in the correct mode from the very start. -- Arcady Genkin http://www.thpoon.com Nostalgia isn't what it used to be. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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